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|
TRUNCATE TABLE test_innodb_stats;
SELECT 'dummy INSERT, the table should be empty';
dummy INSERT, the table should be empty
dummy INSERT, the table should be empty
ANALYZE TABLE test_innodb_stats;
Table Op Msg_type Msg_text
test.test_innodb_stats analyze status OK
SELECT
stat_name,
stat_value,
sample_size,
stat_description
FROM mysql.innodb_index_stats
WHERE
database_name = DATABASE() AND
table_name = 'test_innodb_stats' AND
index_name = 'a_key' AND
stat_name IN ('n_diff_pfx01', 'n_diff_pfx02', 'n_leaf_pages', 'size')
ORDER BY stat_name;
stat_name n_diff_pfx01
stat_value 0
sample_size 1
stat_description a
stat_name n_diff_pfx02
stat_value 0
sample_size 1
stat_description a,DB_ROW_ID
stat_name n_leaf_pages
stat_value 1
sample_size NULL
stat_description Number of leaf pages in the index
stat_name size
stat_value 1
sample_size NULL
stat_description Number of pages in the index
FLUSH TABLE test_innodb_stats;
SELECT * FROM information_schema.statistics
WHERE table_name = 'test_innodb_stats';
TABLE_CATALOG def
TABLE_SCHEMA test
TABLE_NAME test_innodb_stats
NON_UNIQUE 1
INDEX_SCHEMA test
INDEX_NAME a_key
SEQ_IN_INDEX 1
COLUMN_NAME a
COLLATION A
CARDINALITY 0
SUB_PART NULL
PACKED NULL
NULLABLE YES
INDEX_TYPE BTREE
COMMENT
INDEX_COMMENT
IGNORED NO
TRUNCATE TABLE test_innodb_stats;
INSERT INTO test_innodb_stats (a) VALUES (1);
ANALYZE TABLE test_innodb_stats;
Table Op Msg_type Msg_text
test.test_innodb_stats analyze status OK
SELECT
stat_name,
stat_value,
sample_size,
stat_description
FROM mysql.innodb_index_stats
WHERE
database_name = DATABASE() AND
table_name = 'test_innodb_stats' AND
index_name = 'a_key' AND
stat_name IN ('n_diff_pfx01', 'n_diff_pfx02', 'n_leaf_pages', 'size')
ORDER BY stat_name;
stat_name n_diff_pfx01
stat_value 1
sample_size 1
stat_description a
stat_name n_diff_pfx02
stat_value 1
sample_size 1
stat_description a,DB_ROW_ID
stat_name n_leaf_pages
stat_value 1
sample_size NULL
stat_description Number of leaf pages in the index
stat_name size
stat_value 1
sample_size NULL
stat_description Number of pages in the index
FLUSH TABLE test_innodb_stats;
SELECT * FROM information_schema.statistics
WHERE table_name = 'test_innodb_stats';
TABLE_CATALOG def
TABLE_SCHEMA test
TABLE_NAME test_innodb_stats
NON_UNIQUE 1
INDEX_SCHEMA test
INDEX_NAME a_key
SEQ_IN_INDEX 1
COLUMN_NAME a
COLLATION A
CARDINALITY 1
SUB_PART NULL
PACKED NULL
NULLABLE YES
INDEX_TYPE BTREE
COMMENT
INDEX_COMMENT
IGNORED NO
TRUNCATE TABLE test_innodb_stats;
INSERT INTO test_innodb_stats (a) VALUES (1), (1);
ANALYZE TABLE test_innodb_stats;
Table Op Msg_type Msg_text
test.test_innodb_stats analyze status OK
SELECT
stat_name,
stat_value,
sample_size,
stat_description
FROM mysql.innodb_index_stats
WHERE
database_name = DATABASE() AND
table_name = 'test_innodb_stats' AND
index_name = 'a_key' AND
stat_name IN ('n_diff_pfx01', 'n_diff_pfx02', 'n_leaf_pages', 'size')
ORDER BY stat_name;
stat_name n_diff_pfx01
stat_value 1
sample_size 1
stat_description a
stat_name n_diff_pfx02
stat_value 2
sample_size 1
stat_description a,DB_ROW_ID
stat_name n_leaf_pages
stat_value 1
sample_size NULL
stat_description Number of leaf pages in the index
stat_name size
stat_value 1
sample_size NULL
stat_description Number of pages in the index
FLUSH TABLE test_innodb_stats;
SELECT * FROM information_schema.statistics
WHERE table_name = 'test_innodb_stats';
TABLE_CATALOG def
TABLE_SCHEMA test
TABLE_NAME test_innodb_stats
NON_UNIQUE 1
INDEX_SCHEMA test
INDEX_NAME a_key
SEQ_IN_INDEX 1
COLUMN_NAME a
COLLATION A
CARDINALITY 2
SUB_PART NULL
PACKED NULL
NULLABLE YES
INDEX_TYPE BTREE
COMMENT
INDEX_COMMENT
IGNORED NO
TRUNCATE TABLE test_innodb_stats;
INSERT INTO test_innodb_stats (a) VALUES (1), (1), (1);
ANALYZE TABLE test_innodb_stats;
Table Op Msg_type Msg_text
test.test_innodb_stats analyze status OK
SELECT
stat_name,
stat_value,
sample_size,
stat_description
FROM mysql.innodb_index_stats
WHERE
database_name = DATABASE() AND
table_name = 'test_innodb_stats' AND
index_name = 'a_key' AND
stat_name IN ('n_diff_pfx01', 'n_diff_pfx02', 'n_leaf_pages', 'size')
ORDER BY stat_name;
stat_name n_diff_pfx01
stat_value 1
sample_size 1
stat_description a
stat_name n_diff_pfx02
stat_value 3
sample_size 1
stat_description a,DB_ROW_ID
stat_name n_leaf_pages
stat_value 1
sample_size NULL
stat_description Number of leaf pages in the index
stat_name size
stat_value 1
sample_size NULL
stat_description Number of pages in the index
FLUSH TABLE test_innodb_stats;
SELECT * FROM information_schema.statistics
WHERE table_name = 'test_innodb_stats';
TABLE_CATALOG def
TABLE_SCHEMA test
TABLE_NAME test_innodb_stats
NON_UNIQUE 1
INDEX_SCHEMA test
INDEX_NAME a_key
SEQ_IN_INDEX 1
COLUMN_NAME a
COLLATION A
CARDINALITY 3
SUB_PART NULL
PACKED NULL
NULLABLE YES
INDEX_TYPE BTREE
COMMENT
INDEX_COMMENT
IGNORED NO
TRUNCATE TABLE test_innodb_stats;
INSERT INTO test_innodb_stats (a) VALUES (1), (1), (1), (1), (1), (1), (1), (1), (1), (1);
ANALYZE TABLE test_innodb_stats;
Table Op Msg_type Msg_text
test.test_innodb_stats analyze status OK
SELECT
stat_name,
stat_value,
sample_size,
stat_description
FROM mysql.innodb_index_stats
WHERE
database_name = DATABASE() AND
table_name = 'test_innodb_stats' AND
index_name = 'a_key' AND
stat_name IN ('n_diff_pfx01', 'n_diff_pfx02', 'n_leaf_pages', 'size')
ORDER BY stat_name;
stat_name n_diff_pfx01
stat_value 1
sample_size 1
stat_description a
stat_name n_diff_pfx02
stat_value 10
sample_size 1
stat_description a,DB_ROW_ID
stat_name n_leaf_pages
stat_value 1
sample_size NULL
stat_description Number of leaf pages in the index
stat_name size
stat_value 1
sample_size NULL
stat_description Number of pages in the index
FLUSH TABLE test_innodb_stats;
SELECT * FROM information_schema.statistics
WHERE table_name = 'test_innodb_stats';
TABLE_CATALOG def
TABLE_SCHEMA test
TABLE_NAME test_innodb_stats
NON_UNIQUE 1
INDEX_SCHEMA test
INDEX_NAME a_key
SEQ_IN_INDEX 1
COLUMN_NAME a
COLLATION A
CARDINALITY 2
SUB_PART NULL
PACKED NULL
NULLABLE YES
INDEX_TYPE BTREE
COMMENT
INDEX_COMMENT
IGNORED NO
TRUNCATE TABLE test_innodb_stats;
INSERT INTO test_innodb_stats (a) VALUES (1), (2);
ANALYZE TABLE test_innodb_stats;
Table Op Msg_type Msg_text
test.test_innodb_stats analyze status OK
SELECT
stat_name,
stat_value,
sample_size,
stat_description
FROM mysql.innodb_index_stats
WHERE
database_name = DATABASE() AND
table_name = 'test_innodb_stats' AND
index_name = 'a_key' AND
stat_name IN ('n_diff_pfx01', 'n_diff_pfx02', 'n_leaf_pages', 'size')
ORDER BY stat_name;
stat_name n_diff_pfx01
stat_value 2
sample_size 1
stat_description a
stat_name n_diff_pfx02
stat_value 2
sample_size 1
stat_description a,DB_ROW_ID
stat_name n_leaf_pages
stat_value 1
sample_size NULL
stat_description Number of leaf pages in the index
stat_name size
stat_value 1
sample_size NULL
stat_description Number of pages in the index
FLUSH TABLE test_innodb_stats;
SELECT * FROM information_schema.statistics
WHERE table_name = 'test_innodb_stats';
TABLE_CATALOG def
TABLE_SCHEMA test
TABLE_NAME test_innodb_stats
NON_UNIQUE 1
INDEX_SCHEMA test
INDEX_NAME a_key
SEQ_IN_INDEX 1
COLUMN_NAME a
COLLATION A
CARDINALITY 2
SUB_PART NULL
PACKED NULL
NULLABLE YES
INDEX_TYPE BTREE
COMMENT
INDEX_COMMENT
IGNORED NO
TRUNCATE TABLE test_innodb_stats;
INSERT INTO test_innodb_stats (a) VALUES (1), (1), (2);
ANALYZE TABLE test_innodb_stats;
Table Op Msg_type Msg_text
test.test_innodb_stats analyze status OK
SELECT
stat_name,
stat_value,
sample_size,
stat_description
FROM mysql.innodb_index_stats
WHERE
database_name = DATABASE() AND
table_name = 'test_innodb_stats' AND
index_name = 'a_key' AND
stat_name IN ('n_diff_pfx01', 'n_diff_pfx02', 'n_leaf_pages', 'size')
ORDER BY stat_name;
stat_name n_diff_pfx01
stat_value 2
sample_size 1
stat_description a
stat_name n_diff_pfx02
stat_value 3
sample_size 1
stat_description a,DB_ROW_ID
stat_name n_leaf_pages
stat_value 1
sample_size NULL
stat_description Number of leaf pages in the index
stat_name size
stat_value 1
sample_size NULL
stat_description Number of pages in the index
FLUSH TABLE test_innodb_stats;
SELECT * FROM information_schema.statistics
WHERE table_name = 'test_innodb_stats';
TABLE_CATALOG def
TABLE_SCHEMA test
TABLE_NAME test_innodb_stats
NON_UNIQUE 1
INDEX_SCHEMA test
INDEX_NAME a_key
SEQ_IN_INDEX 1
COLUMN_NAME a
COLLATION A
CARDINALITY 3
SUB_PART NULL
PACKED NULL
NULLABLE YES
INDEX_TYPE BTREE
COMMENT
INDEX_COMMENT
IGNORED NO
TRUNCATE TABLE test_innodb_stats;
INSERT INTO test_innodb_stats (a) VALUES (1), (2), (3);
ANALYZE TABLE test_innodb_stats;
Table Op Msg_type Msg_text
test.test_innodb_stats analyze status OK
SELECT
stat_name,
stat_value,
sample_size,
stat_description
FROM mysql.innodb_index_stats
WHERE
database_name = DATABASE() AND
table_name = 'test_innodb_stats' AND
index_name = 'a_key' AND
stat_name IN ('n_diff_pfx01', 'n_diff_pfx02', 'n_leaf_pages', 'size')
ORDER BY stat_name;
stat_name n_diff_pfx01
stat_value 3
sample_size 1
stat_description a
stat_name n_diff_pfx02
stat_value 3
sample_size 1
stat_description a,DB_ROW_ID
stat_name n_leaf_pages
stat_value 1
sample_size NULL
stat_description Number of leaf pages in the index
stat_name size
stat_value 1
sample_size NULL
stat_description Number of pages in the index
FLUSH TABLE test_innodb_stats;
SELECT * FROM information_schema.statistics
WHERE table_name = 'test_innodb_stats';
TABLE_CATALOG def
TABLE_SCHEMA test
TABLE_NAME test_innodb_stats
NON_UNIQUE 1
INDEX_SCHEMA test
INDEX_NAME a_key
SEQ_IN_INDEX 1
COLUMN_NAME a
COLLATION A
CARDINALITY 3
SUB_PART NULL
PACKED NULL
NULLABLE YES
INDEX_TYPE BTREE
COMMENT
INDEX_COMMENT
IGNORED NO
TRUNCATE TABLE test_innodb_stats;
INSERT INTO test_innodb_stats (a) VALUES (1), (1), (2), (3), (3);
ANALYZE TABLE test_innodb_stats;
Table Op Msg_type Msg_text
test.test_innodb_stats analyze status OK
SELECT
stat_name,
stat_value,
sample_size,
stat_description
FROM mysql.innodb_index_stats
WHERE
database_name = DATABASE() AND
table_name = 'test_innodb_stats' AND
index_name = 'a_key' AND
stat_name IN ('n_diff_pfx01', 'n_diff_pfx02', 'n_leaf_pages', 'size')
ORDER BY stat_name;
stat_name n_diff_pfx01
stat_value 3
sample_size 1
stat_description a
stat_name n_diff_pfx02
stat_value 5
sample_size 1
stat_description a,DB_ROW_ID
stat_name n_leaf_pages
stat_value 1
sample_size NULL
stat_description Number of leaf pages in the index
stat_name size
stat_value 1
sample_size NULL
stat_description Number of pages in the index
FLUSH TABLE test_innodb_stats;
SELECT * FROM information_schema.statistics
WHERE table_name = 'test_innodb_stats';
TABLE_CATALOG def
TABLE_SCHEMA test
TABLE_NAME test_innodb_stats
NON_UNIQUE 1
INDEX_SCHEMA test
INDEX_NAME a_key
SEQ_IN_INDEX 1
COLUMN_NAME a
COLLATION A
CARDINALITY 5
SUB_PART NULL
PACKED NULL
NULLABLE YES
INDEX_TYPE BTREE
COMMENT
INDEX_COMMENT
IGNORED NO
TRUNCATE TABLE test_innodb_stats;
INSERT INTO test_innodb_stats (a) VALUES (1), (2), (3), (4), (5), (1), (2), (3), (4), (5);
ANALYZE TABLE test_innodb_stats;
Table Op Msg_type Msg_text
test.test_innodb_stats analyze status OK
SELECT
stat_name,
stat_value,
sample_size,
stat_description
FROM mysql.innodb_index_stats
WHERE
database_name = DATABASE() AND
table_name = 'test_innodb_stats' AND
index_name = 'a_key' AND
stat_name IN ('n_diff_pfx01', 'n_diff_pfx02', 'n_leaf_pages', 'size')
ORDER BY stat_name;
stat_name n_diff_pfx01
stat_value 5
sample_size 1
stat_description a
stat_name n_diff_pfx02
stat_value 10
sample_size 1
stat_description a,DB_ROW_ID
stat_name n_leaf_pages
stat_value 1
sample_size NULL
stat_description Number of leaf pages in the index
stat_name size
stat_value 1
sample_size NULL
stat_description Number of pages in the index
FLUSH TABLE test_innodb_stats;
SELECT * FROM information_schema.statistics
WHERE table_name = 'test_innodb_stats';
TABLE_CATALOG def
TABLE_SCHEMA test
TABLE_NAME test_innodb_stats
NON_UNIQUE 1
INDEX_SCHEMA test
INDEX_NAME a_key
SEQ_IN_INDEX 1
COLUMN_NAME a
COLLATION A
CARDINALITY 10
SUB_PART NULL
PACKED NULL
NULLABLE YES
INDEX_TYPE BTREE
COMMENT
INDEX_COMMENT
IGNORED NO
|
